Chelsea Clinton was attending a New York City memorial for the victims of the Mosque shooting in New Zealand when a college student came up to her and criticized Clinton for remarks she made on Twitter a few weeks earlier directed at Muslim Rep. Ilhan Omar (D-MN).

Omar had been under fire for remarks she made about the American-Israel Political Action Committee’s influence over politicians, and Clinton tweeted, “Co-signed as an American. We should expect all elected officials, regardless of party, and all public figures to not traffic in anti-Semitism.” But many called out Clinton for writing, “as an American” in her remarks about Omar, implying that Omar herself is not a real American or not as American as Clinton, a typical anti-Muslim trope.

NYU students upset with Clinton’s comments confronted her at the vigil for the 49 people killed at mosques in Christchurch, New Zealand. “This right here is the result of a massacre stoked by people like you and the words that you put out into the world. And I want you to know that and I want you to feel that deep inside. Forty-nine people died because of the rhetoric you put out there,” the student said.

After the confrontation went viral, Twitter user @vivafalastin came forward to identify herself as the young woman speaking to Clinton in the video. She tweeted, “I said, and continue to say, that by jumping on the right-wing bandwagon and villifying Ilhan Omar, [Clinton] fed into the EXACT discourse we were at the vigil to protest.”